A.N.Zolotko, A.A.Nazarenko About the competing processes which determine the generation of oscillations by the localized area of a cavitation nature |
Acoustic bulletin, Vol. 4 ¹ 3, (2001) |
| The results of investigations are presented. These results have shown the presence of two competing processes responsible for generation of acoustic oscillations by the radiation system with the axis-symmetric localized cavitation zone. It is shown experimentally that with the increase of the outflow velocity from the ring-form slot nozzle the average pressure inside the cavitation zone decreases monotonously. At the same time the increase of the velocity leads to the increase of the pressure inside this zone. The competition of these two processes leads to the explosive ejection of the content from this zone and generation of the acoustic oscillation with the relaxative character. The theoretical calculation results relatively well correspond to the results of the experimental researches. |
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KEY WORDS: cavitation area, jet, nozzle, relaxation, sound generation |
| TEXT LANGUAGE: Russian |